Will i have kids ????? ?

Hi, i am married since 1 year....planning to have kids after one more year...there is something which constantly bothers me a lot....that is i am under weight for 5 feet 6 inches i am 46 kgs....ppl always tell me i wont have kids because i am very skinny....i never diet i eat healthy just that i dont put on weight...my periods are like clock work...never had any problems.....my mother-in-law....may be quit my contraceptive pills saying i wont conceive later...thats ok because i was have a lot of head ache with the tablets.....hubby now using condoms...will my weight affect my chances of having kids....i am lil anemic my hemo count is 10.5...i am working on improving it...Please help me i love kids an surely want to be a mom some day.....:)