There are certain things to ask yourself before considering having a child, and whether it is your husband or partner in life, there are certainly things to consider.
Avoid straddling your partner while making love. Positions where sperm is not likely to leak out are the best. Placing a pillow under your hips during or after making love allows your cervix to rest in the semen for a short time. allowing sperm time to travel to the cervix.
Make sure the pillow isn't too large and the sperm winds up behind your cervix.
If you have a tilted or tipped uterus, making love from behind may allow the sperm an easier path to your cervix.
Positions to Avoidarticle source: http://www.amazingpregnancy.com
Any position sitting, standing, or with you on top will not allow the sperm time to reach it's destination - your cervix - and will make the job of the sperm much harder if not impossible, in reaching the cervix.