Could I be pregnant if I missed my period this month?

Menstrual bleeding patterns often change when hormonal tablets are administered. But, if your menstruation continues for too long than usual then medical help of a gynecologists is required.

Toward the middle of the pregnancy, a smaller belly at 17 weeks might trouble you. If a belly is small, it can be because of the baby’s position, the way your body is holding the baby, or many other reasons. In the majority of cases, it's not a big deal when your health conditions are within normal limits. Continue to eat well and go to all of your pregnancy medical check-ins to ensure that you and your baby are healthy.

If the intercourse was rough, it could just be irritation making itself known, or possibly even a small tear in your partner’s vaginal wall. Look out for any sign that it might have been more than that, like if there’s pain at all beyond normal discomfort during sex, or weird discharge afterward. 

There is a risk of pregnancy when having unprotected sex, even without ejaculation. Sperm can be released beforehand, which can lead to conception. If you miss your menstrual cycle or experience symptoms like nausea, it could indicate pregnancy. In such cases, considering emergency contraceptive options would be a wise step.

It sounds like you had an ectopic pregnancy, which is a serious medical condition that requires prompt treatment. In most cases, surgery is necessary to remove the pregnancy and prevent life-threatening complications. As for removing both tubes, this may have been necessary depending on the extent of damage or scarring. It's important to follow up with a gynecologist or reproductive specialist to discuss any concerns or questions you may have about your fertility.