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.

Masturbating on the outer part of the vagina, the upper lips do not cause nerve damage or break the hymen. Masturbation is a normal and safe activity that does not interfere with your marriage or fertility. The body naturally heals itself, so any leftovers from old habits should not be a concern for you now. 

Emergency pills can alter menstrual cycle.. Common side effect. Some women may not get their period on time. Wait for at least a week or two. Take a pregnancy test to confirm. Consult with a medical professional if concerned. 

• Avoid using perfumed soaps, gels, wipes or other feminine products.
• Don’t douche or wash inside your vagina.
• Avoid wearing tight underwear, leotards, bathing suits or sweaty clothes for long periods of time.

in protected sex pregnancy is not possible. Delayed mensuration may indicates other issues like stress, hormonal imbalance etc. Wait for few more days or if you are worried plz visit your gynecologist