hello doctor, i m 27 yers old with one son and presently i am continueing my studies, to complete my studies i am left with one and half years, now my problem is its been one and half months that my mensuration didnt come, i doubt maybe i m gone pregnant and due to my on going studies i can't give birth to the second child currently, for this i feel very sorry with my decission as i feel my studies is more important for my entire life . so kindly suggest me any suitable advice which don't have side effects? what could be the best method and what should i go for?