hello Fouzia Sheikh-Dere madam, first of all let me congratulate you for the baby which you have brought in this world.
now coming on your migraine
attacks,almost every medicine has some or the other side effects. we have to see the ratio between side effect and the benefit which the drug can give. in your case it seems that you must be lactating (feeding ) your baby, so not all drugs are safe.
what you can try is to identify the trigger factors which increases your migraine attacks...and try to avoid them. some important and common can be:-
1. lack of sleep
2. lack of proper diet
4.eating too many chocolates.
and many more which you yourself can identify as you can see which factors are increasing your attack.
try to get more fresh air and fruits, do yoga
& hope you got the point which i want to tell and have a tension free life. take care.